ought to prove
Verbe irrégulier : prove - proved- proven
Traduction française : prouver - s'avérer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I ought to prove
you ought to prove
she ought to prove
we ought to prove
you ought to prove
they ought to prove 	I ought to be proving
you ought to be proving
she ought to be proving
we ought to be proving
you ought to be proving
they ought to be proving	I ought to have proven
you ought to have proven
she ought to have proven
we ought to have proven
you ought to have proven
they ought to have proven	I ought to have been proving
you ought to have been proving
she ought to have been proving
we ought to have been proving
you ought to have been proving
they ought to have been proving	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I oughtn't to prove
you oughtn't to prove
she oughtn't to prove
we oughtn't to prove
you oughtn't to prove
they oughtn't to prove 	I oughtn't to be proving
you oughtn't to be proving
she oughtn't to be proving
we oughtn't to be proving
you oughtn't to be proving
they oughtn't to be proving	I oughtn't to have proven
you oughtn't to have proven
she oughtn't to have proven
we oughtn't to have proven
you oughtn't to have proven
they oughtn't to have proven	I oughtn't to have been proving
you oughtn't to have been proving
she oughtn't to have been proving
we oughtn't to have been proving
you oughtn't to have been proving
they oughtn't to have been proving	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
ought to I prove?
ought to you prove?
ought to she prove?
ought to we prove?
ought to you prove?
ought to they prove? 	ought to I be proving?
ought to you be proving?
ought to she be proving?
ought to we be proving?
ought to you be proving?
ought to they be proving? 	ought to I have proven?
ought to you have proven?
ought to she have proven?
ought to we have proven?
ought to you have proven?
ought to they have proven? 	ought to I have been proving?
ought to you have been proving?
ought to she have been proving?
ought to we have been proving?
ought to you have been proving?
ought to they have been proving? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
oughtn't I to prove?
oughtn't you to prove?
oughtn't she to prove?
oughtn't we to prove?
oughtn't you to prove?
oughtn't they to prove? 	oughtn't I to be proving?
oughtn't you to be proving?
oughtn't she to be proving?
oughtn't we to be proving?
oughtn't you to be proving?
oughtn't they to be proving? 	oughtn't I to have proven?
oughtn't you to have proven?
oughtn't she to have proven?
oughtn't we to have proven?
oughtn't you to have proven?
oughtn't they to have proven? 	oughtn't I to have been proving?
oughtn't you to have been proving?
oughtn't she to have been proving?
oughtn't we to have been proving?
oughtn't you to have been proving?
oughtn't they to have been proving?